Hi there - hope someone can give me some advice please? I've a vast quantity of men's stiff shirt collars (detachable types that need collar studs). Many of them are rather grubby and need a clean and I'm not sure how, if at all, is the best way to do this. Does anyone know? I'm not sure of the ages - I would hazard a guess they are probably 1960s. Is there any way of dating men's collars at all? They are part of our am-dram costume store which is having a major sort out with many items being offered for sale so I may be asking other questions too I'm afraid. Any advice gratefully received - this seems a fantastic site - only just joined and here I am asking questions already!